56741980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:347

約数の個数: 72

約数和(自身を含む): 130576320

約数和(自身を除く): 73834340

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 271, 290, 361, 380, 542, 551, 580, 722, 1084, 1102, 1355, 1444, 1805, 2204, 2710, 2755, 3610, 5149, 5420, 5510, 7220, 7859, 10298, 10469, 11020, 15718, 20596, 20938, 25745, 31436, 39295, 41876, 51490, 52345, 78590, 97831, 102980, 104690, 149321, 157180, 195662, 209380, 298642, 391324, 489155, 597284, 746605, 978310, 1493210, 1956620, 2837099, 2986420, 5674198, 11348396, 14185495, 28370990, 56741980]

約数ペア:

[(1, 56741980), (2, 28370990), (4, 14185495), (5, 11348396), (10, 5674198), (19, 2986420), (20, 2837099), (29, 1956620), (38, 1493210), (58, 978310), (76, 746605), (95, 597284), (116, 489155), (145, 391324), (190, 298642), (271, 209380), (290, 195662), (361, 157180), (380, 149321), (542, 104690), (551, 102980), (580, 97831), (722, 78590), (1084, 52345), (1102, 51490), (1355, 41876), (1444, 39295), (1805, 31436), (2204, 25745), (2710, 20938), (2755, 20596), (3610, 15718), (5149, 11020), (5420, 10469), (5510, 10298), (7220, 7859)]